GDI+ concern???????

CPallini

TooShy2Talk wrote:

Graphics gr(bmpTemp)

(One overload of )The Graphics constructor accepts a pointer to a CImage object. DrawImage (as well as RotateTransform) is a method of the Graphics class. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

TooShy2Talk

But how will I declare bmpTemp? ????????? Graphics gr(bmpTemp) I'm confused on how will I declare this one. Can yu please show. Thank you.

TooShy2Talk

I have tried Image *bmpTemp; Graphics gr(bmpTemp); .... stitching here but result to following error, bmpTemp is being used without being defined. I don't really know how to implement it.

SandipG

Did you look at the link i gave. It shows a graphics constructor which accepts Image class object as a parameter. Bitmap class is derived from the Image class. So when you will pass the Bitmap object to the graphics constructor it would invoke that constructor. Now declaration of bitmap. You can simply create a canvas bitmap which will hold your other bitmaps someting like this. Bitmap *bmpTemp = new Bitmap(iWidth,iHeight); Is it clear now???

Regards, Sandip.

CPallini

For instance

CImage bmpTemp;
bmpTemp.Create(640,400,32);
Graphics gr(& bmpTemp); // please note the ampersand

Bitmap bmpTemp(640,400, PixelFormat32bppRGB);
Graphics gr(& bmpTemp);

Did you follow the link provided by Sandip? Have you a good C++ tutorial? :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

modified on Tuesday, September 9, 2008 4:41 AM

TooShy2Talk · modified on Tuesday, September 9, 2008 4:41 AM

Yes, I have tried also CImage bmpTemp; but there is no intellisense for .Create() bmpTemp.Create(); I have tried including altimage.h but it comflicts to other class I'm using. Or is there other header to include?

SandipG

TooShy2Talk wrote:

CImage bmpTemp;

I dont know if CImage is derived from Image. But you can use

Image *bmpTemp = new Image(iWidth,iHeight);

Did you try this?? I don't know why are you facing so much trouble in this Previously you were using hDC directly to draw your bitmaps on. Now you just have to replace this hDC with temporary bitmap.. and once you finish all your operations do following

Graphics gr(hDC);
gr.RotateTransform(..);
gr.DrawImage(bmpTemp);

Is it clear?

Regards, Sandip.

TooShy2Talk

SandipG :) wrote:

But you can use Image *bmpTemp = new Image(iWidth,iHeight);

I received an error on this, I think there is no constructor available.

TooShy2Talk · modified on Tuesday, September 9, 2008 4:41 AM

I have successfully created the following lines

CPallini wrote:

CImage bmpTemp; bmpTemp.Create(640,400,32);

But encountered an error on the line below.

CPallini wrote:

Graphics gr(& bmpTemp);

Error is "Cannot convert CImage* to HDC".

SandipG

TooShy2Talk wrote:

Image *bmpTemp = new Image(iWidth,iHeight);

I am nt sure if constructor is available for the Image class but it is surely there for Bitmap. What is the problem you facing in following code.

Bitmap *bmpTemp = new Bitmap(iWidth,iHeight);
Graphics gr(bmpTemp);

If you still have problems Please Look at this section on CP GDI+[^] I hope it will help you..

Regards, Sandip.

modified on Tuesday, September 9, 2008 4:40 AM

CPallini

You're right: I made confusion, I'm sorry about. I've modified my previous post. Hope it helps. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

TooShy2Talk

Finally, it WORKS. Thank you very much. It's a big help. Till my next question. :laugh: :laugh:

CPallini

I'm very sorry for the delay due to my mistakes. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]